\begin{tabular}{l*{8}{c}}
\toprule
& \multicolumn{3}{c}{Panel A: $ \beta^{ER} $} & \multicolumn{3}{c}{Panel B: $ \beta^{COL} $} & N \\ \cmidrule(lr){2-4}\cmidrule(lr){5-7}
 & Non-Single & Single & All & Non-Single & Single & All  \\
 &(1)&(2)&(3)&(4)&(5)&(6)&(7) \\ \midrule
Baseline             &    2.236{***}&   -1.538{*}  &    0.995{*}  &   -1.087         &   -1.058         &   -1.073{**} &     1,080     \\
                &  (0.669)         &  (0.880)         &  (0.539)         &  (0.663)         &  (0.749)         &  (0.485)         &                  \\
\addlinespace
\uline{Exclude}: \\
\addlinespace
3 Largest Metro Areas&    2.981{***}&   -1.007         &    1.828{***}&   -0.232         &   -0.134         &   -0.268        &  814     \\
                &  (0.796)         &  (1.073)         &  (0.639)         &  (0.815)         &  (0.813)         &  (0.591)       &                  \\
\addlinespace
Small Metro Areas&    2.281{***}&   -1.840{**} &    0.904         &   -0.964         &   -0.787         &   -0.914{*}  & 1,023  \\
                &  (0.685)         &  (0.926)         &  (0.551)         &  (0.689)         &  (0.806)         &  (0.505)         &                  \\
\bottomrule
\end{tabular}
